Tape cartridge

Claim 1

A TAPE CARTRIDGE OR THE LIKE COMPRISING IN COMBINATION A SHALLOW CONTAINER HAVING SPACED OPPOSITE SIDE WALLS AND EDGE WALL MEANS, SAID EDGE WALL MEANS CONNECTING EDGE PORTIONS OF SAID SIDE WALLS AND DEFINING A SUBSTANTIALLY CYLINDRICAL CAVITY WITHIN SAID CONTAINER, A REEL ROTATABLY LOCATED WITHIN SAID CYLINDRICAL CAVITY AND HAVING SPACED PARALLEL CIRCULAR SIDE FLANGES WHICH HAVE A DIAMETER LESS THAN THAT OF SAID CAVITY TO PROVIDE AN ANNULAR SPACE BETWEEN THE PERIPHERIES OF SAID SIDE FLANGES AND SAID EDGE WALL MEANS OF SAID CONTAINER WHEN THE REEL IS POSITIONED CENTRALLY WITHIN SAID CAVITY, A TAPE WOUND ON SAID REEL BETWEEN SAID SIDE FLANGES, A STIFF LEADER ATTACHED TO THE FREE END OF SAID TAPE, SAID LEADER HAVING A WIDE PORTION OF GREATER WIDTH THAN THE SPACING BETWEEN SAID SIDE FLANGES AND WOUND ON THE OUTERMOST PERIPHERAL EDGE PORTIONS OF SAID FLANGES WITHIN SAID ANNULAR SPACE BEYOND SAID PERIPHERAL EDGE PORTION, THE FREE END OF SAID WOUND LEADER BEARING AGAINST SAID EDGE WALL MEANS, SAID EDGE WALL MEANS BEING FORMED TO DEFINE A PASSAGE THERETHROUGH, WHICH COMMUNICATES WITH SAID ANNULAR SPACE AND WHICH IS SO ORIENTED THAT MOVEMENT OF SAID WOUND LEADER IN AN UNWINDING DIRECTION PROJECTS THE FREE END OF THE LEADER THROUGH SAID PASSAGE, SAID CONTAINER BEING FORMED WITH A PERIPHERAL OPENING EXPOSING A PORTION OF SAID REEL FLANGES AND THE OUTER SURFACE OF SAID WOUND LEADER, AND MEANS TO PROVIDE CONTINUITY OF SAID EDGE WALL MEANS AT SAID OPENING AND TO AFFORD ENGAGEMENT WITH SAID LEADER AND SAID REEL FLANGES BY EXTERNAL DRIVE MEANS WHILE PERMITTING THE FREE END OF SAID LEADER TO BE DRIVEN PAST SAID OPENING IN AN UNWINDING DIRECTION.